Perfect for problematic and photo-damaged skin, Retinol 1.0 contains 1% pure retinol, the highest concentration currently available, and should be used for advanced treatment of pre-conditioned skin. The retinol products help stimulate cell regeneration and build collagen to diminish the appearance of fine lines, wrinkles, and age spots from both photo- and intrinsic- aging. Additionally, they help minimize the appearance of pore size, while correcting blemishes and blotchiness often associated with problematic skin.